With the development of 3d printing technology, 3d printers have been able to directly manufacture metal parts with metallurgical combination, dense organization, dimensional accuracy and good mechanical properties, and have broad application prospects, and become a research hotspot in today's additive manufacturing field. 3d printer printing metal parts has the advantages of personalized design, rapid molding, and short manufacturing cycle, which is very suitable for the manufacture of small batch, personalized, and complex surface and internal structure of metal parts.
Under normal circumstances, it is necessary to clean the sealing cavity in the 3D printer from time to time, however, in the traditional way, it is necessary to open the sealing door of the 3d printer for internal cleaning of the sealing cavity, which is easy to pollute the external environment and seriously affect the printing quality of the product. It needs to be carried out in a high temperature environment, under high temperature conditions, the metal powder contact with the oxygen in the air will oxidize the product and easily produce high temperature combustion, the glove box provides an atmosphere of inert gas, and the atmosphere of inert gas is purified twice, to ensure that the environment in the box reaches an anhydrous and oxygen-free atmosphere, and can be sustained in a low value range. Ensure stability during 3D printing production.